نتایج جستجو برای: midtrimester
تعداد نتایج: 233 فیلتر نتایج به سال:
Vascular endothelial growth factor (VEGF) is a potent endothelial cell mitogen involved in normal and abnormal angiogenesis. VEGF mRNA and protein are abundant in distal epithelium of midtrimester human fetal lung. In the present study, we identified immunoreactivity for KDR, a major VEGF-specific receptor, in distal lung epithelial cells of human fetal lung tissue, suggesting a possible autocr...
OBJECTIVE To determine whether the use of vaginal progesterone in asymptomatic women with a sonographic short cervix (≤ 25 mm) in the midtrimester reduces the risk of preterm birth and improves neonatal morbidity and mortality. STUDY DESIGN Individual patient data metaanalysis of randomized controlled trials. RESULTS Five trials of high quality were included with a total of 775 women and 82...
BACKGROUND To determine the impact of Cervical Cerclage (CC) for prolongation of pregnancy, maternal and foetal outcome. METHODS This Descriptive cross-sectional study was conducted over a period of 2 years patients with history of two or more recurrent midtrimester abortions/preterm deliveries were included. Those with abnormal foetus, vaginal bleeding and choreoamneonitis were excluded. All...
Hepatic progenitor cells play a major role in regenerating diseased liver. In rodents, progenitors forming hepatocytes or cholangiocytes are identified by the stem cell marker Thy-1. The aim of this study was to ascertain whether progenitor cells expressing Thy-1 could be identified in human fetal liver. Midtrimester human fetal liver was immunostained for Thy-1, cytokeratins 18 and 19, vimenti...
Background: To compare pregnancy outcomes in women at risk for cervical incompetence after elective versus ultrasound indicated cerclage. Methods: In a prospective randomized trial, singleton pregnancies with at least one previous spontaneous midtrimester loss or early preterm delivery (between 15 and 32 weeks’ gestation) who met clinical criteria for the diagnosis of cervical incompe tence we...
OBJECTIVE To describe the prenatal phenotype of the 11q deletion syndrome (Jacobsen syndrome) and present the molecular characterization of the deletion in the case presented. CASE Ultrasound at 18 and 20 weeks of gestation, on a 34-year-old woman who presented for amniocentesis, revealed slow movements, oligohydramnios and dilatation of the cerebral ventricles in the fetus. Maternal and pate...
The efficacy of a new prostaglandin E, analogue, gemeprost (cervagem) for mid -trimester termination of pregnancy was assessed. Mid -trimester abortion was successfully induced in 32 out of 42 women with normal pregnancies within 48 hours by vaginal administration of 1 mg gemeprost pessary every 3 hours up to a maximum of five pessaries. 23 patients were nulliparous and 19 were multiparous (mea...
In the current model of vertebrate sex determination and sexual differentiation, gonadal sex is fixed at fertilization by specific chromosomes, a process known as genotypic sex determination (GSD). Only after the gonad is formed do hormones begin to exert an influence that modifies specific structures that eventually will differ the sexes. Many egg-laying reptiles do not exhibit GSD but rather ...
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